test case 510, mpeix fix

when we receive a request overflow, we still dump the incoming request to
the dump file to make it easier to understand and debug the situation

added lib510.c for callback POST using chunked encoding

added test 510, callback-based POST using chunked encoding

--socks

Added --socks

only do the verifyconnect() clear magic on mpeix

the thread and SSL issue is now fixed

note about the need for extra functions set to OpenSSL if you use OpenSSL
multi-threaded

update with recent info

don't include config.g in src/hugehelp.c unless HAVE_CONFIG_H is defined

ares fix, warnings fixed, mpeix fixes

check for sys/ioctl.h as well
added commented more aggressive compiler options for gcc, subject to be used
instead of the current ones when --enable-debug is used

added verifyconnect proto and use it correctly in the waitconnect function

moved the definitions of IOCTL_3_ARGS to setup.h

1. changed order of two include files to build fine on MPE/iX
2. now reads the socket error before check connect status, also to make us
run fine on MPE/iX

Ken Hirsch says he basicly needs all 'mv' to be 'mv -f' for configure to
run in a sane manner on his MPE/iX operating system.

Dan Fandrich's cleanup patch to make pedantic compiler options cause less
warnings. Minor edits by me.

make pedantic compiler options generate less warnings

added hugehelp.h

nonsence change to make -Wunreachable-code get happy

use hugehelp.h to silence picky compiler warnings

documented ares_version()

return a const char *

use the name 'c-ares' for this package